src/core/postgresqlstorage.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2020 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
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  20
  21 #include "postgresqlstorage.h"
  22
  23 #include <QByteArray>
  24 #include <QDataStream>
  25 #include <QSqlDriver>
  26 #include <QSqlField>
  27
  28 #include "network.h"
  29 #include "quassel.h"
  30
  31 PostgreSqlStorage::PostgreSqlStorage(QObject* parent)
  32     : AbstractSqlStorage(parent)
  33 {}
  34
  35 std::unique_ptr<AbstractSqlMigrationWriter> PostgreSqlStorage::createMigrationWriter()
  36 {
  37     auto writer = new PostgreSqlMigrationWriter();
  38     QVariantMap properties;
  39     properties["Username"] = _userName;
  40     properties["Password"] = _password;
  41     properties["Hostname"] = _hostName;
  42     properties["Port"] = _port;
  43     properties["Database"] = _databaseName;
  44     writer->setConnectionProperties(properties, {}, false);
  45     return std::unique_ptr<AbstractSqlMigrationWriter>{writer};
  46 }
  47
  48 bool PostgreSqlStorage::isAvailable() const
  49 {
  50     if (!QSqlDatabase::isDriverAvailable("QPSQL")) {
  51         qWarning() << qPrintable(tr("PostgreSQL driver plugin not available for Qt. Installed drivers:"))
  52                    << qPrintable(QSqlDatabase::drivers().join(", "));
  53         return false;
  54     }
  55     return true;
  56 }
  57
  58 QString PostgreSqlStorage::backendId() const
  59 {
  60     return QString("PostgreSQL");
  61 }
  62
  63 QString PostgreSqlStorage::displayName() const
  64 {
  65     return backendId();  // Note: Pre-0.13 clients use the displayName property for backend idenfication
  66 }
  67
  68 QString PostgreSqlStorage::description() const
  69 {
  70     // FIXME: proper description
  71     return tr("PostgreSQL Turbo Bomber HD!");
  72 }
  73
  74 QVariantList PostgreSqlStorage::setupData() const
  75 {
  76     QVariantList data;
  77     data << "Username" << tr("Username") << QString("quassel") << "Password" << tr("Password") << QString() << "Hostname" << tr("Hostname")
  78          << QString("localhost") << "Port" << tr("Port") << 5432 << "Database" << tr("Database") << QString("quassel");
  79     return data;
  80 }
  81
  82 bool PostgreSqlStorage::initDbSession(QSqlDatabase& db)
  83 {
  84     // check whether the Qt driver performs string escaping or not.
  85     // i.e. test if it doubles slashes.
  86     QSqlField testField;
  87     testField.setType(QVariant::String);
  88     testField.setValue("\\");
  89     QString formattedString = db.driver()->formatValue(testField);
  90     switch (formattedString.count('\\')) {
  91     case 2:
  92         // yes it does... and we cannot do anything to change the behavior of Qt.
  93         // If this is a legacy DB (Postgres < 8.2), then everything is already ok,
  94         // as this is the expected behavior.
  95         // If it is a newer version, switch to legacy mode.
  96
  97         qWarning() << "Switching Postgres to legacy mode. (set standard conforming strings to off)";
  98         // If the following calls fail, it is a legacy DB anyways, so it doesn't matter
  99         // and no need to check the outcome.
 100         db.exec("set standard_conforming_strings = off");
 101         db.exec("set escape_string_warning = off");
 102         break;
 103     case 1:
 104         // ok, so Qt does not escape...
 105         // That means we have to ensure that postgres uses standard conforming strings...
 106         {
 107             QSqlQuery query = db.exec("set standard_conforming_strings = on");
 108             if (query.lastError().isValid()) {
 109                 // We cannot enable standard conforming strings...
 110                 // since Quassel does no escaping by itself, this would yield a major vulnerability.
 111                 qCritical() << "Failed to enable standard_conforming_strings for the Postgres db!";
 112                 return false;
 113             }
 114         }
 115         break;
 116     default:
 117         // The slash got replaced with 0 or more than 2 slashes! o_O
 118         qCritical()
 119             << "Your version of Qt does something _VERY_ strange to slashes in QSqlQueries! You should consult your trusted doctor!";
 120         return false;
 121         break;
 122     }
 123
 124     // Set the PostgreSQL session timezone to UTC, since we want timestamps stored in UTC
 125     QSqlQuery tzQuery = db.exec("SET timezone = 'UTC'");
 126     if (tzQuery.lastError().isValid()) {
 127         qCritical() << "Failed to set timezone to UTC!";
 128         return false;
 129     }
 130
 131     return true;
 132 }
 133
 134 void PostgreSqlStorage::setConnectionProperties(const QVariantMap& properties, const QProcessEnvironment& environment, bool loadFromEnvironment)
 135 {
 136     if (loadFromEnvironment) {
 137         _userName = environment.value("DB_PGSQL_USERNAME");
 138         _password = environment.value("DB_PGSQL_PASSWORD");
 139         _hostName = environment.value("DB_PGSQL_HOSTNAME");
 140         _port = environment.value("DB_PGSQL_PORT").toInt();
 141         _databaseName = environment.value("DB_PGSQL_DATABASE");
 142     }
 143     else {
 144         _userName = properties["Username"].toString();
 145         _password = properties["Password"].toString();
 146         _hostName = properties["Hostname"].toString();
 147         _port = properties["Port"].toInt();
 148         _databaseName = properties["Database"].toString();
 149     }
 150 }
 151
 152 int PostgreSqlStorage::installedSchemaVersion()
 153 {
 154     QSqlQuery query(logDb());
 155     query.prepare("SELECT value FROM coreinfo WHERE key = 'schemaversion'");
 156     safeExec(query);
 157     watchQuery(query);
 158     if (query.first())
 159         return query.value(0).toInt();
 160
 161     // maybe it's really old... (schema version 0)
 162     query.prepare("SELECT MAX(version) FROM coreinfo");
 163     safeExec(query);
 164     watchQuery(query);
 165     if (query.first())
 166         return query.value(0).toInt();
 167
 168     return AbstractSqlStorage::installedSchemaVersion();
 169 }
 170
 171 bool PostgreSqlStorage::updateSchemaVersion(int newVersion, bool clearUpgradeStep)
 172 {
 173     // Atomically update the schema version and clear the upgrade step, if specified
 174     // Note: This will need reworked if "updateSchemaVersion" is ever called within a transaction.
 175     QSqlDatabase db = logDb();
 176     if (!beginTransaction(db)) {
 177         qWarning() << "PostgreSqlStorage::updateSchemaVersion(int, bool): cannot start transaction!";
 178         qWarning() << " -" << qPrintable(db.lastError().text());
 179         return false;
 180     }
 181
 182     QSqlQuery query(db);
 183     query.prepare("UPDATE coreinfo SET value = :version WHERE key = 'schemaversion'");
 184     query.bindValue(":version", newVersion);
 185     safeExec(query);
 186
 187     if (!watchQuery(query)) {
 188         qCritical() << "PostgreSqlStorage::updateSchemaVersion(int, bool): Updating schema version failed!";
 189         db.rollback();
 190         return false;
 191     }
 192
 193     if (clearUpgradeStep) {
 194         // Try clearing the upgrade step if requested
 195         if (!setSchemaVersionUpgradeStep("")) {
 196             db.rollback();
 197             return false;
 198         }
 199     }
 200
 201     // Successful, commit and return true
 202     db.commit();
 203     return true;
 204 }
 205
 206 bool PostgreSqlStorage::setupSchemaVersion(int version)
 207 {
 208     QSqlQuery query(logDb());
 209     query.prepare("INSERT INTO coreinfo (key, value) VALUES ('schemaversion', :version)");
 210     query.bindValue(":version", version);
 211     safeExec(query);
 212
 213     bool success = true;
 214     if (!watchQuery(query)) {
 215         qCritical() << "PostgreSqlStorage::setupSchemaVersion(int): Updating schema version failed!";
 216         success = false;
 217     }
 218     return success;
 219 }
 220
 221 QString PostgreSqlStorage::schemaVersionUpgradeStep()
 222 {
 223     QSqlQuery query(logDb());
 224     query.prepare("SELECT value FROM coreinfo WHERE key = 'schemaupgradestep'");
 225     safeExec(query);
 226     watchQuery(query);
 227     if (query.first())
 228         return query.value(0).toString();
 229
 230     // Fall back to the default value
 231     return AbstractSqlStorage::schemaVersionUpgradeStep();
 232 }
 233
 234 bool PostgreSqlStorage::setSchemaVersionUpgradeStep(QString upgradeQuery)
 235 {
 236     // Intentionally do not wrap in a transaction so other functions can include multiple operations
 237
 238     QSqlQuery query(logDb());
 239     query.prepare("UPDATE coreinfo SET value = :upgradestep WHERE key = 'schemaupgradestep'");
 240     query.bindValue(":upgradestep", upgradeQuery);
 241     safeExec(query);
 242
 243     // Make sure that the query didn't fail (shouldn't ever happen), and that some non-zero number
 244     // of rows were affected
 245     bool success = watchQuery(query) && query.numRowsAffected() != 0;
 246
 247     if (!success) {
 248         // The key might not exist (Quassel 0.13.0 and older).  Try inserting it...
 249         query = QSqlQuery(logDb());
 250         query.prepare("INSERT INTO coreinfo (key, value) VALUES ('schemaupgradestep', :upgradestep)");
 251         query.bindValue(":upgradestep", upgradeQuery);
 252         safeExec(query);
 253
 254         if (!watchQuery(query)) {
 255             qCritical() << Q_FUNC_INFO << "Setting schema upgrade step failed!";
 256             success = false;
 257         }
 258         else {
 259             success = true;
 260         }
 261     }
 262     return success;
 263 }
 264
 265 UserId PostgreSqlStorage::addUser(const QString& user, const QString& password, const QString& authenticator)
 266 {
 267     QSqlQuery query(logDb());
 268     query.prepare(queryString("insert_quasseluser"));
 269     query.bindValue(":username", user);
 270     query.bindValue(":password", hashPassword(password));
 271     query.bindValue(":hashversion", Storage::HashVersion::Latest);
 272     query.bindValue(":authenticator", authenticator);
 273     safeExec(query);
 274     if (!watchQuery(query))
 275         return 0;
 276
 277     query.first();
 278     UserId uid = query.value(0).toInt();
 279     emit userAdded(uid, user);
 280     return uid;
 281 }
 282
 283 bool PostgreSqlStorage::updateUser(UserId user, const QString& password)
 284 {
 285     QSqlQuery query(logDb());
 286     query.prepare(queryString("update_userpassword"));
 287     query.bindValue(":userid", user.toInt());
 288     query.bindValue(":password", hashPassword(password));
 289     query.bindValue(":hashversion", Storage::HashVersion::Latest);
 290     safeExec(query);
 291     watchQuery(query);
 292     return query.numRowsAffected() != 0;
 293 }
 294
 295 void PostgreSqlStorage::renameUser(UserId user, const QString& newName)
 296 {
 297     QSqlQuery query(logDb());
 298     query.prepare(queryString("update_username"));
 299     query.bindValue(":userid", user.toInt());
 300     query.bindValue(":username", newName);
 301     safeExec(query);
 302     watchQuery(query);
 303     emit userRenamed(user, newName);
 304 }
 305
 306 UserId PostgreSqlStorage::validateUser(const QString& user, const QString& password)
 307 {
 308     QSqlQuery query(logDb());
 309     query.prepare(queryString("select_authuser"));
 310     query.bindValue(":username", user);
 311     safeExec(query);
 312     watchQuery(query);
 313
 314     if (query.first()
 315         && checkHashedPassword(query.value(0).toInt(),
 316                                password,
 317                                query.value(1).toString(),
 318                                static_cast<Storage::HashVersion>(query.value(2).toInt()))) {
 319         return query.value(0).toInt();
 320     }
 321     else {
 322         return 0;
 323     }
 324 }
 325
 326 UserId PostgreSqlStorage::getUserId(const QString& user)
 327 {
 328     QSqlQuery query(logDb());
 329     query.prepare(queryString("select_userid"));
 330     query.bindValue(":username", user);
 331     safeExec(query);
 332     watchQuery(query);
 333
 334     if (query.first()) {
 335         return query.value(0).toInt();
 336     }
 337     else {
 338         return 0;
 339     }
 340 }
 341
 342 QString PostgreSqlStorage::getUserAuthenticator(const UserId userid)
 343 {
 344     QSqlQuery query(logDb());
 345     query.prepare(queryString("select_authenticator"));
 346     query.bindValue(":userid", userid.toInt());
 347     safeExec(query);
 348     watchQuery(query);
 349
 350     if (query.first()) {
 351         return query.value(0).toString();
 352     }
 353     else {
 354         return QString("");
 355     }
 356 }
 357
 358 UserId PostgreSqlStorage::internalUser()
 359 {
 360     QSqlQuery query(logDb());
 361     query.prepare(queryString("select_internaluser"));
 362     safeExec(query);
 363     watchQuery(query);
 364
 365     if (query.first()) {
 366         return query.value(0).toInt();
 367     }
 368     else {
 369         return 0;
 370     }
 371 }
 372
 373 void PostgreSqlStorage::delUser(UserId user)
 374 {
 375     QSqlDatabase db = logDb();
 376     if (!beginTransaction(db)) {
 377         qWarning() << "PostgreSqlStorage::delUser(): cannot start transaction!";
 378         return;
 379     }
 380
 381     QSqlQuery query(db);
 382     query.prepare(queryString("delete_quasseluser"));
 383     query.bindValue(":userid", user.toInt());
 384     safeExec(query);
 385     if (!watchQuery(query)) {
 386         db.rollback();
 387         return;
 388     }
 389     else {
 390         db.commit();
 391         emit userRemoved(user);
 392     }
 393 }
 394
 395 void PostgreSqlStorage::setUserSetting(UserId userId, const QString& settingName, const QVariant& data)
 396 {
 397     QByteArray rawData;
 398     QDataStream out(&rawData, QIODevice::WriteOnly);
 399     out.setVersion(QDataStream::Qt_4_2);
 400     out << data;
 401
 402     QSqlDatabase db = logDb();
 403     QSqlQuery selectQuery(db);
 404     selectQuery.prepare(queryString("select_user_setting"));
 405     selectQuery.bindValue(":userid", userId.toInt());
 406     selectQuery.bindValue(":settingname", settingName);
 407     safeExec(selectQuery);
 408     watchQuery(selectQuery);
 409
 410     QString setQueryString;
 411     if (!selectQuery.first()) {
 412         setQueryString = queryString("insert_user_setting");
 413     }
 414     else {
 415         setQueryString = queryString("update_user_setting");
 416     }
 417
 418     QSqlQuery setQuery(db);
 419     setQuery.prepare(setQueryString);
 420     setQuery.bindValue(":userid", userId.toInt());
 421     setQuery.bindValue(":settingname", settingName);
 422     setQuery.bindValue(":settingvalue", rawData);
 423     safeExec(setQuery);
 424     watchQuery(setQuery);
 425 }
 426
 427 QVariant PostgreSqlStorage::getUserSetting(UserId userId, const QString& settingName, const QVariant& defaultData)
 428 {
 429     QSqlQuery query(logDb());
 430     query.prepare(queryString("select_user_setting"));
 431     query.bindValue(":userid", userId.toInt());
 432     query.bindValue(":settingname", settingName);
 433     safeExec(query);
 434     watchQuery(query);
 435
 436     if (query.first()) {
 437         QVariant data;
 438         QByteArray rawData = query.value(0).toByteArray();
 439         QDataStream in(&rawData, QIODevice::ReadOnly);
 440         in.setVersion(QDataStream::Qt_4_2);
 441         in >> data;
 442         return data;
 443     }
 444     else {
 445         return defaultData;
 446     }
 447 }
 448
 449 void PostgreSqlStorage::setCoreState(const QVariantList& data)
 450 {
 451     QByteArray rawData;
 452     QDataStream out(&rawData, QIODevice::WriteOnly);
 453     out.setVersion(QDataStream::Qt_4_2);
 454     out << data;
 455
 456     QSqlDatabase db = logDb();
 457     QSqlQuery selectQuery(db);
 458     selectQuery.prepare(queryString("select_core_state"));
 459     selectQuery.bindValue(":key", "active_sessions");
 460     safeExec(selectQuery);
 461     watchQuery(selectQuery);
 462
 463     QString setQueryString;
 464     if (!selectQuery.first()) {
 465         setQueryString = queryString("insert_core_state");
 466     }
 467     else {
 468         setQueryString = queryString("update_core_state");
 469     }
 470
 471     QSqlQuery setQuery(db);
 472     setQuery.prepare(setQueryString);
 473     setQuery.bindValue(":key", "active_sessions");
 474     setQuery.bindValue(":value", rawData);
 475     safeExec(setQuery);
 476     watchQuery(setQuery);
 477 }
 478
 479 QVariantList PostgreSqlStorage::getCoreState(const QVariantList& defaultData)
 480 {
 481     QSqlQuery query(logDb());
 482     query.prepare(queryString("select_core_state"));
 483     query.bindValue(":key", "active_sessions");
 484     safeExec(query);
 485     watchQuery(query);
 486
 487     if (query.first()) {
 488         QVariantList data;
 489         QByteArray rawData = query.value(0).toByteArray();
 490         QDataStream in(&rawData, QIODevice::ReadOnly);
 491         in.setVersion(QDataStream::Qt_4_2);
 492         in >> data;
 493         return data;
 494     }
 495     else {
 496         return defaultData;
 497     }
 498 }
 499
 500 IdentityId PostgreSqlStorage::createIdentity(UserId user, CoreIdentity& identity)
 501 {
 502     IdentityId identityId;
 503
 504     QSqlDatabase db = logDb();
 505     if (!beginTransaction(db)) {
 506         qWarning() << "PostgreSqlStorage::createIdentity(): Unable to start Transaction!";
 507         qWarning() << " -" << qPrintable(db.lastError().text());
 508         return identityId;
 509     }
 510
 511     QSqlQuery query(db);
 512     query.prepare(queryString("insert_identity"));
 513     query.bindValue(":userid", user.toInt());
 514     query.bindValue(":identityname", identity.identityName());
 515     query.bindValue(":realname", identity.realName());
 516     query.bindValue(":awaynick", identity.awayNick());
 517     query.bindValue(":awaynickenabled", identity.awayNickEnabled());
 518     query.bindValue(":awayreason", identity.awayReason());
 519     query.bindValue(":awayreasonenabled", identity.awayReasonEnabled());
 520     query.bindValue(":autoawayenabled", identity.awayReasonEnabled());
 521     query.bindValue(":autoawaytime", identity.autoAwayTime());
 522     query.bindValue(":autoawayreason", identity.autoAwayReason());
 523     query.bindValue(":autoawayreasonenabled", identity.autoAwayReasonEnabled());
 524     query.bindValue(":detachawayenabled", identity.detachAwayEnabled());
 525     query.bindValue(":detachawayreason", identity.detachAwayReason());
 526     query.bindValue(":detachawayreasonenabled", identity.detachAwayReasonEnabled());
 527     query.bindValue(":ident", identity.ident());
 528     query.bindValue(":kickreason", identity.kickReason());
 529     query.bindValue(":partreason", identity.partReason());
 530     query.bindValue(":quitreason", identity.quitReason());
 531     query.bindValue(":sslcert", identity.sslCert().toPem());
 532     query.bindValue(":sslkey", identity.sslKey().toPem());
 533     safeExec(query);
 534     if (!watchQuery(query)) {
 535         db.rollback();
 536         return {};
 537     }
 538
 539     query.first();
 540     identityId = query.value(0).toInt();
 541     identity.setId(identityId);
 542
 543     if (!identityId.isValid()) {
 544         db.rollback();
 545         return {};
 546     }
 547
 548     QSqlQuery insertNickQuery(db);
 549     insertNickQuery.prepare(queryString("insert_nick"));
 550     foreach (QString nick, identity.nicks()) {
 551         insertNickQuery.bindValue(":identityid", identityId.toInt());
 552         insertNickQuery.bindValue(":nick", nick);
 553         safeExec(insertNickQuery);
 554         if (!watchQuery(insertNickQuery)) {
 555             db.rollback();
 556             return {};
 557         }
 558     }
 559
 560     if (!db.commit()) {
 561         qWarning() << "PostgreSqlStorage::createIdentity(): committing data failed!";
 562         qWarning() << " -" << qPrintable(db.lastError().text());
 563         return {};
 564     }
 565     return identityId;
 566 }
 567
 568 bool PostgreSqlStorage::updateIdentity(UserId user, const CoreIdentity& identity)
 569 {
 570     QSqlDatabase db = logDb();
 571     if (!beginTransaction(db)) {
 572         qWarning() << "PostgreSqlStorage::updateIdentity(): Unable to start Transaction!";
 573         qWarning() << " -" << qPrintable(db.lastError().text());
 574         return false;
 575     }
 576
 577     QSqlQuery checkQuery(db);
 578     checkQuery.prepare(queryString("select_checkidentity"));
 579     checkQuery.bindValue(":identityid", identity.id().toInt());
 580     checkQuery.bindValue(":userid", user.toInt());
 581     safeExec(checkQuery);
 582     watchQuery(checkQuery);
 583
 584     // there should be exactly one identity for the given id and user
 585     if (!checkQuery.first() || checkQuery.value(0).toInt() != 1) {
 586         db.rollback();
 587         return false;
 588     }
 589
 590     QSqlQuery query(db);
 591     query.prepare(queryString("update_identity"));
 592     query.bindValue(":identityname", identity.identityName());
 593     query.bindValue(":realname", identity.realName());
 594     query.bindValue(":awaynick", identity.awayNick());
 595     query.bindValue(":awaynickenabled", identity.awayNickEnabled());
 596     query.bindValue(":awayreason", identity.awayReason());
 597     query.bindValue(":awayreasonenabled", identity.awayReasonEnabled());
 598     query.bindValue(":autoawayenabled", identity.awayReasonEnabled());
 599     query.bindValue(":autoawaytime", identity.autoAwayTime());
 600     query.bindValue(":autoawayreason", identity.autoAwayReason());
 601     query.bindValue(":autoawayreasonenabled", identity.autoAwayReasonEnabled());
 602     query.bindValue(":detachawayenabled", identity.detachAwayEnabled());
 603     query.bindValue(":detachawayreason", identity.detachAwayReason());
 604     query.bindValue(":detachawayreasonenabled", identity.detachAwayReasonEnabled());
 605     query.bindValue(":ident", identity.ident());
 606     query.bindValue(":kickreason", identity.kickReason());
 607     query.bindValue(":partreason", identity.partReason());
 608     query.bindValue(":quitreason", identity.quitReason());
 609     query.bindValue(":sslcert", identity.sslCert().toPem());
 610     query.bindValue(":sslkey", identity.sslKey().toPem());
 611     query.bindValue(":identityid", identity.id().toInt());
 612
 613     safeExec(query);
 614     if (!watchQuery(query)) {
 615         db.rollback();
 616         return false;
 617     }
 618
 619     QSqlQuery deleteNickQuery(db);
 620     deleteNickQuery.prepare(queryString("delete_nicks"));
 621     deleteNickQuery.bindValue(":identityid", identity.id().toInt());
 622     safeExec(deleteNickQuery);
 623     if (!watchQuery(deleteNickQuery)) {
 624         db.rollback();
 625         return false;
 626     }
 627
 628     QSqlQuery insertNickQuery(db);
 629     insertNickQuery.prepare(queryString("insert_nick"));
 630     foreach (QString nick, identity.nicks()) {
 631         insertNickQuery.bindValue(":identityid", identity.id().toInt());
 632         insertNickQuery.bindValue(":nick", nick);
 633         safeExec(insertNickQuery);
 634         if (!watchQuery(insertNickQuery)) {
 635             db.rollback();
 636             return false;
 637         }
 638     }
 639
 640     if (!db.commit()) {
 641         qWarning() << "PostgreSqlStorage::updateIdentity(): committing data failed!";
 642         qWarning() << " -" << qPrintable(db.lastError().text());
 643         return false;
 644     }
 645     return true;
 646 }
 647
 648 void PostgreSqlStorage::removeIdentity(UserId user, IdentityId identityId)
 649 {
 650     QSqlDatabase db = logDb();
 651     if (!beginTransaction(db)) {
 652         qWarning() << "PostgreSqlStorage::removeIdentity(): Unable to start Transaction!";
 653         qWarning() << " -" << qPrintable(db.lastError().text());
 654         return;
 655     }
 656
 657     QSqlQuery query(db);
 658     query.prepare(queryString("delete_identity"));
 659     query.bindValue(":identityid", identityId.toInt());
 660     query.bindValue(":userid", user.toInt());
 661     safeExec(query);
 662     if (!watchQuery(query)) {
 663         db.rollback();
 664     }
 665     else {
 666         db.commit();
 667     }
 668 }
 669
 670 std::vector<CoreIdentity> PostgreSqlStorage::identities(UserId user)
 671 {
 672     std::vector<CoreIdentity> identities;
 673
 674     QSqlDatabase db = logDb();
 675     if (!beginReadOnlyTransaction(db)) {
 676         qWarning() << "PostgreSqlStorage::identites(): cannot start read only transaction!";
 677         qWarning() << " -" << qPrintable(db.lastError().text());
 678         return identities;
 679     }
 680
 681     QSqlQuery query(db);
 682     query.prepare(queryString("select_identities"));
 683     query.bindValue(":userid", user.toInt());
 684
 685     QSqlQuery nickQuery(db);
 686     nickQuery.prepare(queryString("select_nicks"));
 687
 688     safeExec(query);
 689     watchQuery(query);
 690
 691     while (query.next()) {
 692         CoreIdentity identity(IdentityId(query.value(0).toInt()));
 693
 694         identity.setIdentityName(query.value(1).toString());
 695         identity.setRealName(query.value(2).toString());
 696         identity.setAwayNick(query.value(3).toString());
 697         identity.setAwayNickEnabled(!!query.value(4).toInt());
 698         identity.setAwayReason(query.value(5).toString());
 699         identity.setAwayReasonEnabled(!!query.value(6).toInt());
 700         identity.setAutoAwayEnabled(!!query.value(7).toInt());
 701         identity.setAutoAwayTime(query.value(8).toInt());
 702         identity.setAutoAwayReason(query.value(9).toString());
 703         identity.setAutoAwayReasonEnabled(!!query.value(10).toInt());
 704         identity.setDetachAwayEnabled(!!query.value(11).toInt());
 705         identity.setDetachAwayReason(query.value(12).toString());
 706         identity.setDetachAwayReasonEnabled(!!query.value(13).toInt());
 707         identity.setIdent(query.value(14).toString());
 708         identity.setKickReason(query.value(15).toString());
 709         identity.setPartReason(query.value(16).toString());
 710         identity.setQuitReason(query.value(17).toString());
 711         identity.setSslCert(query.value(18).toByteArray());
 712         identity.setSslKey(query.value(19).toByteArray());
 713
 714         nickQuery.bindValue(":identityid", identity.id().toInt());
 715         QList<QString> nicks;
 716         safeExec(nickQuery);
 717         watchQuery(nickQuery);
 718         while (nickQuery.next()) {
 719             nicks << nickQuery.value(0).toString();
 720         }
 721         identity.setNicks(nicks);
 722         identities.push_back(std::move(identity));
 723     }
 724     db.commit();
 725     return identities;
 726 }
 727
 728 NetworkId PostgreSqlStorage::createNetwork(UserId user, const NetworkInfo& info)
 729 {
 730     NetworkId networkId;
 731
 732     QSqlDatabase db = logDb();
 733     if (!beginTransaction(db)) {
 734         qWarning() << "PostgreSqlStorage::createNetwork(): failed to begin transaction!";
 735         qWarning() << " -" << qPrintable(db.lastError().text());
 736         return false;
 737     }
 738
 739     QSqlQuery query(db);
 740     query.prepare(queryString("insert_network"));
 741     query.bindValue(":userid", user.toInt());
 742     bindNetworkInfo(query, info);
 743     safeExec(query);
 744     if (!watchQuery(query)) {
 745         db.rollback();
 746         return {};
 747     }
 748
 749     query.first();
 750     networkId = query.value(0).toInt();
 751
 752     if (!networkId.isValid()) {
 753         db.rollback();
 754         return {};
 755     }
 756
 757     QSqlQuery insertServersQuery(db);
 758     insertServersQuery.prepare(queryString("insert_server"));
 759     foreach (Network::Server server, info.serverList) {
 760         insertServersQuery.bindValue(":userid", user.toInt());
 761         insertServersQuery.bindValue(":networkid", networkId.toInt());
 762         bindServerInfo(insertServersQuery, server);
 763         safeExec(insertServersQuery);
 764         if (!watchQuery(insertServersQuery)) {
 765             db.rollback();
 766             return {};
 767         }
 768     }
 769
 770     if (!db.commit()) {
 771         qWarning() << "PostgreSqlStorage::createNetwork(): committing data failed!";
 772         qWarning() << " -" << qPrintable(db.lastError().text());
 773         return {};
 774     }
 775     return networkId;
 776 }
 777
 778 void PostgreSqlStorage::bindNetworkInfo(QSqlQuery& query, const NetworkInfo& info)
 779 {
 780     query.bindValue(":networkname", info.networkName);
 781     query.bindValue(":identityid", info.identity.isValid() ? info.identity.toInt() : QVariant());
 782     query.bindValue(":encodingcodec", QString(info.codecForEncoding));
 783     query.bindValue(":decodingcodec", QString(info.codecForDecoding));
 784     query.bindValue(":servercodec", QString(info.codecForServer));
 785     query.bindValue(":userandomserver", info.useRandomServer);
 786     query.bindValue(":perform", info.perform.join("\n"));
 787     query.bindValue(":useautoidentify", info.useAutoIdentify);
 788     query.bindValue(":autoidentifyservice", info.autoIdentifyService);
 789     query.bindValue(":autoidentifypassword", info.autoIdentifyPassword);
 790     query.bindValue(":usesasl", info.useSasl);
 791     query.bindValue(":saslaccount", info.saslAccount);
 792     query.bindValue(":saslpassword", info.saslPassword);
 793     query.bindValue(":useautoreconnect", info.useAutoReconnect);
 794     query.bindValue(":autoreconnectinterval", info.autoReconnectInterval);
 795     query.bindValue(":autoreconnectretries", info.autoReconnectRetries);
 796     query.bindValue(":unlimitedconnectretries", info.unlimitedReconnectRetries);
 797     query.bindValue(":rejoinchannels", info.rejoinChannels);
 798     // Custom rate limiting
 799     query.bindValue(":usecustomessagerate", info.useCustomMessageRate);
 800     query.bindValue(":messagerateburstsize", info.messageRateBurstSize);
 801     query.bindValue(":messageratedelay", info.messageRateDelay);
 802     query.bindValue(":unlimitedmessagerate", info.unlimitedMessageRate);
 803     if (info.networkId.isValid())
 804         query.bindValue(":networkid", info.networkId.toInt());
 805 }
 806
 807 void PostgreSqlStorage::bindServerInfo(QSqlQuery& query, const Network::Server& server)
 808 {
 809     query.bindValue(":hostname", server.host);
 810     query.bindValue(":port", server.port);
 811     query.bindValue(":password", server.password);
 812     query.bindValue(":ssl", server.useSsl);
 813     query.bindValue(":sslversion", server.sslVersion);
 814     query.bindValue(":useproxy", server.useProxy);
 815     query.bindValue(":proxytype", server.proxyType);
 816     query.bindValue(":proxyhost", server.proxyHost);
 817     query.bindValue(":proxyport", server.proxyPort);
 818     query.bindValue(":proxyuser", server.proxyUser);
 819     query.bindValue(":proxypass", server.proxyPass);
 820     query.bindValue(":sslverify", server.sslVerify);
 821 }
 822
 823 bool PostgreSqlStorage::updateNetwork(UserId user, const NetworkInfo& info)
 824 {
 825     QSqlDatabase db = logDb();
 826     if (!beginTransaction(db)) {
 827         qWarning() << "PostgreSqlStorage::updateNetwork(): failed to begin transaction!";
 828         qWarning() << " -" << qPrintable(db.lastError().text());
 829         return false;
 830     }
 831
 832     QSqlQuery updateQuery(db);
 833     updateQuery.prepare(queryString("update_network"));
 834     updateQuery.bindValue(":userid", user.toInt());
 835     bindNetworkInfo(updateQuery, info);
 836     safeExec(updateQuery);
 837     if (!watchQuery(updateQuery)) {
 838         db.rollback();
 839         return false;
 840     }
 841     if (updateQuery.numRowsAffected() != 1) {
 842         // seems this is not our network...
 843         db.rollback();
 844         return false;
 845     }
 846
 847     QSqlQuery dropServersQuery(db);
 848     dropServersQuery.prepare("DELETE FROM ircserver WHERE networkid = :networkid");
 849     dropServersQuery.bindValue(":networkid", info.networkId.toInt());
 850     safeExec(dropServersQuery);
 851     if (!watchQuery(dropServersQuery)) {
 852         db.rollback();
 853         return false;
 854     }
 855
 856     QSqlQuery insertServersQuery(db);
 857     insertServersQuery.prepare(queryString("insert_server"));
 858     foreach (Network::Server server, info.serverList) {
 859         insertServersQuery.bindValue(":userid", user.toInt());
 860         insertServersQuery.bindValue(":networkid", info.networkId.toInt());
 861         bindServerInfo(insertServersQuery, server);
 862         safeExec(insertServersQuery);
 863         if (!watchQuery(insertServersQuery)) {
 864             db.rollback();
 865             return false;
 866         }
 867     }
 868
 869     if (!db.commit()) {
 870         qWarning() << "PostgreSqlStorage::updateNetwork(): committing data failed!";
 871         qWarning() << " -" << qPrintable(db.lastError().text());
 872         return false;
 873     }
 874     return true;
 875 }
 876
 877 bool PostgreSqlStorage::removeNetwork(UserId user, const NetworkId& networkId)
 878 {
 879     QSqlDatabase db = logDb();
 880     if (!beginTransaction(db)) {
 881         qWarning() << "PostgreSqlStorage::removeNetwork(): cannot start transaction!";
 882         qWarning() << " -" << qPrintable(db.lastError().text());
 883         return false;
 884     }
 885
 886     QSqlQuery query(db);
 887     query.prepare(queryString("delete_network"));
 888     query.bindValue(":userid", user.toInt());
 889     query.bindValue(":networkid", networkId.toInt());
 890     safeExec(query);
 891     if (!watchQuery(query)) {
 892         db.rollback();
 893         return false;
 894     }
 895
 896     db.commit();
 897     return true;
 898 }
 899
 900 std::vector<NetworkInfo> PostgreSqlStorage::networks(UserId user)
 901 {
 902     std::vector<NetworkInfo> nets;
 903
 904     QSqlDatabase db = logDb();
 905     if (!beginReadOnlyTransaction(db)) {
 906         qWarning() << "PostgreSqlStorage::networks(): cannot start read only transaction!";
 907         qWarning() << " -" << qPrintable(db.lastError().text());
 908         return nets;
 909     }
 910
 911     QSqlQuery networksQuery(db);
 912     networksQuery.prepare(queryString("select_networks_for_user"));
 913     networksQuery.bindValue(":userid", user.toInt());
 914
 915     QSqlQuery serversQuery(db);
 916     serversQuery.prepare(queryString("select_servers_for_network"));
 917
 918     safeExec(networksQuery);
 919     if (!watchQuery(networksQuery)) {
 920         db.rollback();
 921         return nets;
 922     }
 923
 924     while (networksQuery.next()) {
 925         NetworkInfo net;
 926         net.networkId = networksQuery.value(0).toInt();
 927         net.networkName = networksQuery.value(1).toString();
 928         net.identity = networksQuery.value(2).toInt();
 929         net.codecForServer = networksQuery.value(3).toString().toLatin1();
 930         net.codecForEncoding = networksQuery.value(4).toString().toLatin1();
 931         net.codecForDecoding = networksQuery.value(5).toString().toLatin1();
 932         net.useRandomServer = networksQuery.value(6).toBool();
 933         net.perform = networksQuery.value(7).toString().split("\n");
 934         net.useAutoIdentify = networksQuery.value(8).toBool();
 935         net.autoIdentifyService = networksQuery.value(9).toString();
 936         net.autoIdentifyPassword = networksQuery.value(10).toString();
 937         net.useAutoReconnect = networksQuery.value(11).toBool();
 938         net.autoReconnectInterval = networksQuery.value(12).toUInt();
 939         net.autoReconnectRetries = networksQuery.value(13).toInt();
 940         net.unlimitedReconnectRetries = networksQuery.value(14).toBool();
 941         net.rejoinChannels = networksQuery.value(15).toBool();
 942         net.useSasl = networksQuery.value(16).toBool();
 943         net.saslAccount = networksQuery.value(17).toString();
 944         net.saslPassword = networksQuery.value(18).toString();
 945         // Custom rate limiting
 946         net.useCustomMessageRate = networksQuery.value(19).toBool();
 947         net.messageRateBurstSize = networksQuery.value(20).toUInt();
 948         net.messageRateDelay = networksQuery.value(21).toUInt();
 949         net.unlimitedMessageRate = networksQuery.value(22).toBool();
 950
 951         serversQuery.bindValue(":networkid", net.networkId.toInt());
 952         safeExec(serversQuery);
 953         if (!watchQuery(serversQuery)) {
 954             db.rollback();
 955             return nets;
 956         }
 957
 958         Network::ServerList servers;
 959         while (serversQuery.next()) {
 960             Network::Server server;
 961             server.host = serversQuery.value(0).toString();
 962             server.port = serversQuery.value(1).toUInt();
 963             server.password = serversQuery.value(2).toString();
 964             server.useSsl = serversQuery.value(3).toBool();
 965             server.sslVersion = serversQuery.value(4).toInt();
 966             server.useProxy = serversQuery.value(5).toBool();
 967             server.proxyType = serversQuery.value(6).toInt();
 968             server.proxyHost = serversQuery.value(7).toString();
 969             server.proxyPort = serversQuery.value(8).toUInt();
 970             server.proxyUser = serversQuery.value(9).toString();
 971             server.proxyPass = serversQuery.value(10).toString();
 972             server.sslVerify = serversQuery.value(11).toBool();
 973             servers << server;
 974         }
 975         net.serverList = servers;
 976         nets.push_back(std::move(net));
 977     }
 978     db.commit();
 979     return nets;
 980 }
 981
 982 std::vector<NetworkId> PostgreSqlStorage::connectedNetworks(UserId user)
 983 {
 984     std::vector<NetworkId> connectedNets;
 985
 986     QSqlDatabase db = logDb();
 987     if (!beginReadOnlyTransaction(db)) {
 988         qWarning() << "PostgreSqlStorage::connectedNetworks(): cannot start read only transaction!";
 989         qWarning() << " -" << qPrintable(db.lastError().text());
 990         return connectedNets;
 991     }
 992
 993     QSqlQuery query(db);
 994     query.prepare(queryString("select_connected_networks"));
 995     query.bindValue(":userid", user.toInt());
 996     safeExec(query);
 997     watchQuery(query);
 998
 999     while (query.next()) {
1000         connectedNets.emplace_back(query.value(0).toInt());
1001     }
1002
1003     db.commit();
1004     return connectedNets;
1005 }
1006
1007 void PostgreSqlStorage::setNetworkConnected(UserId user, const NetworkId& networkId, bool isConnected)
1008 {
1009     QSqlQuery query(logDb());
1010     query.prepare(queryString("update_network_connected"));
1011     query.bindValue(":userid", user.toInt());
1012     query.bindValue(":networkid", networkId.toInt());
1013     query.bindValue(":connected", isConnected);
1014     safeExec(query);
1015     watchQuery(query);
1016 }
1017
1018 QHash<QString, QString> PostgreSqlStorage::persistentChannels(UserId user, const NetworkId& networkId)
1019 {
1020     QHash<QString, QString> persistentChans;
1021
1022     QSqlDatabase db = logDb();
1023     if (!beginReadOnlyTransaction(db)) {
1024         qWarning() << "PostgreSqlStorage::persistentChannels(): cannot start read only transaction!";
1025         qWarning() << " -" << qPrintable(db.lastError().text());
1026         return persistentChans;
1027     }
1028
1029     QSqlQuery query(db);
1030     query.prepare(queryString("select_persistent_channels"));
1031     query.bindValue(":userid", user.toInt());
1032     query.bindValue(":networkid", networkId.toInt());
1033     safeExec(query);
1034     watchQuery(query);
1035
1036     while (query.next()) {
1037         persistentChans[query.value(0).toString()] = query.value(1).toString();
1038     }
1039
1040     db.commit();
1041     return persistentChans;
1042 }
1043
1044 void PostgreSqlStorage::setChannelPersistent(UserId user, const NetworkId& networkId, const QString& channel, bool isJoined)
1045 {
1046     QSqlQuery query(logDb());
1047     query.prepare(queryString("update_buffer_persistent_channel"));
1048     query.bindValue(":userid", user.toInt());
1049     query.bindValue(":networkid", networkId.toInt());
1050     query.bindValue(":buffercname", channel.toLower());
1051     query.bindValue(":joined", isJoined);
1052     safeExec(query);
1053     watchQuery(query);
1054 }
1055
1056 void PostgreSqlStorage::setPersistentChannelKey(UserId user, const NetworkId& networkId, const QString& channel, const QString& key)
1057 {
1058     QSqlQuery query(logDb());
1059     query.prepare(queryString("update_buffer_set_channel_key"));
1060     query.bindValue(":userid", user.toInt());
1061     query.bindValue(":networkid", networkId.toInt());
1062     query.bindValue(":buffercname", channel.toLower());
1063     query.bindValue(":key", key);
1064     safeExec(query);
1065     watchQuery(query);
1066 }
1067
1068 QString PostgreSqlStorage::awayMessage(UserId user, NetworkId networkId)
1069 {
1070     QSqlQuery query(logDb());
1071     query.prepare(queryString("select_network_awaymsg"));
1072     query.bindValue(":userid", user.toInt());
1073     query.bindValue(":networkid", networkId.toInt());
1074     safeExec(query);
1075     watchQuery(query);
1076     QString awayMsg;
1077     if (query.first())
1078         awayMsg = query.value(0).toString();
1079     return awayMsg;
1080 }
1081
1082 void PostgreSqlStorage::setAwayMessage(UserId user, NetworkId networkId, const QString& awayMsg)
1083 {
1084     QSqlQuery query(logDb());
1085     query.prepare(queryString("update_network_set_awaymsg"));
1086     query.bindValue(":userid", user.toInt());
1087     query.bindValue(":networkid", networkId.toInt());
1088     query.bindValue(":awaymsg", awayMsg);
1089     safeExec(query);
1090     watchQuery(query);
1091 }
1092
1093 QString PostgreSqlStorage::userModes(UserId user, NetworkId networkId)
1094 {
1095     QSqlQuery query(logDb());
1096     query.prepare(queryString("select_network_usermode"));
1097     query.bindValue(":userid", user.toInt());
1098     query.bindValue(":networkid", networkId.toInt());
1099     safeExec(query);
1100     watchQuery(query);
1101     QString modes;
1102     if (query.first())
1103         modes = query.value(0).toString();
1104     return modes;
1105 }
1106
1107 void PostgreSqlStorage::setUserModes(UserId user, NetworkId networkId, const QString& userModes)
1108 {
1109     QSqlQuery query(logDb());
1110     query.prepare(queryString("update_network_set_usermode"));
1111     query.bindValue(":userid", user.toInt());
1112     query.bindValue(":networkid", networkId.toInt());
1113     query.bindValue(":usermode", userModes);
1114     safeExec(query);
1115     watchQuery(query);
1116 }
1117
1118 BufferInfo PostgreSqlStorage::bufferInfo(UserId user, const NetworkId& networkId, BufferInfo::Type type, const QString& buffer, bool create)
1119 {
1120     QSqlDatabase db = logDb();
1121     if (!beginTransaction(db)) {
1122         qWarning() << "PostgreSqlStorage::bufferInfo(): cannot start read only transaction!";
1123         qWarning() << " -" << qPrintable(db.lastError().text());
1124         return {};
1125     }
1126
1127     QSqlQuery query(db);
1128     query.prepare(queryString("select_bufferByName"));
1129     query.bindValue(":networkid", networkId.toInt());
1130     query.bindValue(":userid", user.toInt());
1131     query.bindValue(":buffercname", buffer.toLower());
1132     safeExec(query);
1133     watchQuery(query);
1134
1135     if (query.first()) {
1136         BufferInfo bufferInfo = BufferInfo(query.value(0).toInt(), networkId, (BufferInfo::Type)query.value(1).toInt(), 0, buffer);
1137         if (query.next()) {
1138             qCritical() << "PostgreSqlStorage::bufferInfo(): received more then one Buffer!";
1139             qCritical() << "         Query:" << query.lastQuery();
1140             qCritical() << "  bound Values:";
1141             QList<QVariant> list = query.boundValues().values();
1142             for (int i = 0; i < list.size(); ++i)
1143                 qCritical() << i << ":" << list.at(i).toString().toLatin1().data();
1144             Q_ASSERT(false);
1145         }
1146         db.commit();
1147         return bufferInfo;
1148     }
1149
1150     if (!create) {
1151         db.rollback();
1152         return {};
1153     }
1154
1155     QSqlQuery createQuery(db);
1156     createQuery.prepare(queryString("insert_buffer"));
1157     createQuery.bindValue(":userid", user.toInt());
1158     createQuery.bindValue(":networkid", networkId.toInt());
1159     createQuery.bindValue(":buffertype", (int)type);
1160     createQuery.bindValue(":buffername", buffer);
1161     createQuery.bindValue(":buffercname", buffer.toLower());
1162     createQuery.bindValue(":joined", type & BufferInfo::ChannelBuffer ? true : false);
1163
1164     safeExec(createQuery);
1165
1166     if (!watchQuery(createQuery)) {
1167         qWarning() << "PostgreSqlStorage::bufferInfo(): unable to create buffer";
1168         db.rollback();
1169         return BufferInfo();
1170     }
1171
1172     createQuery.first();
1173
1174     BufferInfo bufferInfo = BufferInfo(createQuery.value(0).toInt(), networkId, type, 0, buffer);
1175     db.commit();
1176     return bufferInfo;
1177 }
1178
1179 BufferInfo PostgreSqlStorage::getBufferInfo(UserId user, const BufferId& bufferId)
1180 {
1181     QSqlQuery query(logDb());
1182     query.prepare(queryString("select_buffer_by_id"));
1183     query.bindValue(":userid", user.toInt());
1184     query.bindValue(":bufferid", bufferId.toInt());
1185     safeExec(query);
1186     if (!watchQuery(query))
1187         return {};
1188
1189     if (!query.first())
1190         return {};
1191
1192     BufferInfo bufferInfo(query.value(0).toInt(),
1193                           query.value(1).toInt(),
1194                           (BufferInfo::Type)query.value(2).toInt(),
1195                           0,
1196                           query.value(4).toString());
1197     Q_ASSERT(!query.next());
1198
1199     return bufferInfo;
1200 }
1201
1202 std::vector<BufferInfo> PostgreSqlStorage::requestBuffers(UserId user)
1203 {
1204     std::vector<BufferInfo> bufferlist;
1205
1206     QSqlDatabase db = logDb();
1207     if (!beginReadOnlyTransaction(db)) {
1208         qWarning() << "PostgreSqlStorage::requestBuffers(): cannot start read only transaction!";
1209         qWarning() << " -" << qPrintable(db.lastError().text());
1210         return bufferlist;
1211     }
1212
1213     QSqlQuery query(db);
1214     query.prepare(queryString("select_buffers"));
1215     query.bindValue(":userid", user.toInt());
1216
1217     safeExec(query);
1218     watchQuery(query);
1219     while (query.next()) {
1220         bufferlist.emplace_back(query.value(0).toInt(),
1221                                 query.value(1).toInt(),
1222                                 (BufferInfo::Type)query.value(2).toInt(),
1223                                 query.value(3).toInt(),
1224                                 query.value(4).toString());
1225     }
1226     db.commit();
1227     return bufferlist;
1228 }
1229
1230 std::vector<BufferId> PostgreSqlStorage::requestBufferIdsForNetwork(UserId user, NetworkId networkId)
1231 {
1232     std::vector<BufferId> bufferList;
1233
1234     QSqlDatabase db = logDb();
1235     if (!beginReadOnlyTransaction(db)) {
1236         qWarning() << "PostgreSqlStorage::requestBufferIdsForNetwork(): cannot start read only transaction!";
1237         qWarning() << " -" << qPrintable(db.lastError().text());
1238         return bufferList;
1239     }
1240
1241     QSqlQuery query(db);
1242     query.prepare(queryString("select_buffers_for_network"));
1243     query.bindValue(":networkid", networkId.toInt());
1244     query.bindValue(":userid", user.toInt());
1245
1246     safeExec(query);
1247     watchQuery(query);
1248     while (query.next()) {
1249         bufferList.emplace_back(query.value(0).toInt());
1250     }
1251     db.commit();
1252     return bufferList;
1253 }
1254
1255 bool PostgreSqlStorage::removeBuffer(const UserId& user, const BufferId& bufferId)
1256 {
1257     QSqlDatabase db = logDb();
1258     if (!beginTransaction(db)) {
1259         qWarning() << "PostgreSqlStorage::removeBuffer(): cannot start transaction!";
1260         return false;
1261     }
1262
1263     QSqlQuery query(db);
1264     query.prepare(queryString("delete_buffer_for_bufferid"));
1265     query.bindValue(":userid", user.toInt());
1266     query.bindValue(":bufferid", bufferId.toInt());
1267     safeExec(query);
1268     if (!watchQuery(query)) {
1269         db.rollback();
1270         return false;
1271     }
1272
1273     int numRows = query.numRowsAffected();
1274     switch (numRows) {
1275     case 0:
1276         db.commit();
1277         return false;
1278     case 1:
1279         db.commit();
1280         return true;
1281     default:
1282         // there was more then one buffer deleted...
1283         qWarning() << "PostgreSqlStorage::removeBuffer(): Userid" << user << "BufferId"
1284                    << "caused deletion of" << numRows << "Buffers! Rolling back transaction...";
1285         db.rollback();
1286         return false;
1287     }
1288 }
1289
1290 bool PostgreSqlStorage::renameBuffer(const UserId& user, const BufferId& bufferId, const QString& newName)
1291 {
1292     QSqlDatabase db = logDb();
1293     if (!beginTransaction(db)) {
1294         qWarning() << "PostgreSqlStorage::renameBuffer(): cannot start transaction!";
1295         return false;
1296     }
1297
1298     QSqlQuery query(db);
1299     query.prepare(queryString("update_buffer_name"));
1300     query.bindValue(":buffername", newName);
1301     query.bindValue(":buffercname", newName.toLower());
1302     query.bindValue(":userid", user.toInt());
1303     query.bindValue(":bufferid", bufferId.toInt());
1304     safeExec(query);
1305     if (!watchQuery(query)) {
1306         db.rollback();
1307         return false;
1308     }
1309
1310     int numRows = query.numRowsAffected();
1311     switch (numRows) {
1312     case 0:
1313         db.commit();
1314         return false;
1315     case 1:
1316         db.commit();
1317         return true;
1318     default:
1319         // there was more then one buffer deleted...
1320         qWarning() << "PostgreSqlStorage::renameBuffer(): Userid" << user << "BufferId"
1321                    << "affected" << numRows << "Buffers! Rolling back transaction...";
1322         db.rollback();
1323         return false;
1324     }
1325 }
1326
1327 bool PostgreSqlStorage::mergeBuffersPermanently(const UserId& user, const BufferId& bufferId1, const BufferId& bufferId2)
1328 {
1329     QSqlDatabase db = logDb();
1330     if (!beginTransaction(db)) {
1331         qWarning() << "PostgreSqlStorage::mergeBuffersPermanently(): cannot start transaction!";
1332         qWarning() << " -" << qPrintable(db.lastError().text());
1333         return false;
1334     }
1335
1336     QSqlQuery checkQuery(db);
1337     checkQuery.prepare("SELECT count(*) FROM buffer "
1338                        "WHERE userid = :userid AND bufferid IN (:buffer1, :buffer2)");
1339     checkQuery.bindValue(":userid", user.toInt());
1340     checkQuery.bindValue(":buffer1", bufferId1.toInt());
1341     checkQuery.bindValue(":buffer2", bufferId2.toInt());
1342     safeExec(checkQuery);
1343     if (!watchQuery(checkQuery)) {
1344         db.rollback();
1345         return false;
1346     }
1347     checkQuery.first();
1348     if (checkQuery.value(0).toInt() != 2) {
1349         db.rollback();
1350         return false;
1351     }
1352
1353     QSqlQuery query(db);
1354     query.prepare(queryString("update_backlog_bufferid"));
1355     query.bindValue(":oldbufferid", bufferId2.toInt());
1356     query.bindValue(":newbufferid", bufferId1.toInt());
1357     safeExec(query);
1358     if (!watchQuery(query)) {
1359         db.rollback();
1360         return false;
1361     }
1362
1363     QSqlQuery delBufferQuery(logDb());
1364     delBufferQuery.prepare(queryString("delete_buffer_for_bufferid"));
1365     delBufferQuery.bindValue(":userid", user.toInt());
1366     delBufferQuery.bindValue(":bufferid", bufferId2.toInt());
1367     safeExec(delBufferQuery);
1368     if (!watchQuery(delBufferQuery)) {
1369         db.rollback();
1370         return false;
1371     }
1372
1373     db.commit();
1374     return true;
1375 }
1376
1377 QHash<BufferId, MsgId> PostgreSqlStorage::bufferLastMsgIds(UserId user)
1378 {
1379     QHash<BufferId, MsgId> lastMsgHash;
1380
1381     QSqlDatabase db = logDb();
1382     if (!beginReadOnlyTransaction(db)) {
1383         qWarning() << "PostgreSqlStorage::bufferLastMsgIds(): cannot start read only transaction!";
1384         qWarning() << " -" << qPrintable(db.lastError().text());
1385         return lastMsgHash;
1386     }
1387
1388     QSqlQuery query(db);
1389     query.prepare(queryString("select_buffer_last_messages"));
1390     query.bindValue(":userid", user.toInt());
1391     safeExec(query);
1392     if (!watchQuery(query)) {
1393         db.rollback();
1394         return lastMsgHash;
1395     }
1396
1397     while (query.next()) {
1398         lastMsgHash[query.value(0).toInt()] = query.value(1).toLongLong();
1399     }
1400
1401     db.commit();
1402     return lastMsgHash;
1403 }
1404
1405 void PostgreSqlStorage::setBufferLastSeenMsg(UserId user, const BufferId& bufferId, const MsgId& msgId)
1406 {
1407     QSqlQuery query(logDb());
1408     query.prepare(queryString("update_buffer_lastseen"));
1409
1410     query.bindValue(":userid", user.toInt());
1411     query.bindValue(":bufferid", bufferId.toInt());
1412     query.bindValue(":lastseenmsgid", msgId.toQint64());
1413     safeExec(query);
1414     watchQuery(query);
1415 }
1416
1417 QHash<BufferId, MsgId> PostgreSqlStorage::bufferLastSeenMsgIds(UserId user)
1418 {
1419     QHash<BufferId, MsgId> lastSeenHash;
1420
1421     QSqlDatabase db = logDb();
1422     if (!beginReadOnlyTransaction(db)) {
1423         qWarning() << "PostgreSqlStorage::bufferLastSeenMsgIds(): cannot start read only transaction!";
1424         qWarning() << " -" << qPrintable(db.lastError().text());
1425         return lastSeenHash;
1426     }
1427
1428     QSqlQuery query(db);
1429     query.prepare(queryString("select_buffer_lastseen_messages"));
1430     query.bindValue(":userid", user.toInt());
1431     safeExec(query);
1432     if (!watchQuery(query)) {
1433         db.rollback();
1434         return lastSeenHash;
1435     }
1436
1437     while (query.next()) {
1438         lastSeenHash[query.value(0).toInt()] = query.value(1).toLongLong();
1439     }
1440
1441     db.commit();
1442     return lastSeenHash;
1443 }
1444
1445 void PostgreSqlStorage::setBufferMarkerLineMsg(UserId user, const BufferId& bufferId, const MsgId& msgId)
1446 {
1447     QSqlQuery query(logDb());
1448     query.prepare(queryString("update_buffer_markerlinemsgid"));
1449
1450     query.bindValue(":userid", user.toInt());
1451     query.bindValue(":bufferid", bufferId.toInt());
1452     query.bindValue(":markerlinemsgid", msgId.toQint64());
1453     safeExec(query);
1454     watchQuery(query);
1455 }
1456
1457 QHash<BufferId, MsgId> PostgreSqlStorage::bufferMarkerLineMsgIds(UserId user)
1458 {
1459     QHash<BufferId, MsgId> markerLineHash;
1460
1461     QSqlDatabase db = logDb();
1462     if (!beginReadOnlyTransaction(db)) {
1463         qWarning() << "PostgreSqlStorage::bufferMarkerLineMsgIds(): cannot start read only transaction!";
1464         qWarning() << " -" << qPrintable(db.lastError().text());
1465         return markerLineHash;
1466     }
1467
1468     QSqlQuery query(db);
1469     query.prepare(queryString("select_buffer_markerlinemsgids"));
1470     query.bindValue(":userid", user.toInt());
1471     safeExec(query);
1472     if (!watchQuery(query)) {
1473         db.rollback();
1474         return markerLineHash;
1475     }
1476
1477     while (query.next()) {
1478         markerLineHash[query.value(0).toInt()] = query.value(1).toLongLong();
1479     }
1480
1481     db.commit();
1482     return markerLineHash;
1483 }
1484
1485 void PostgreSqlStorage::setBufferActivity(UserId user, BufferId bufferId, Message::Types bufferActivity)
1486 {
1487     QSqlQuery query(logDb());
1488     query.prepare(queryString("update_buffer_bufferactivity"));
1489
1490     query.bindValue(":userid", user.toInt());
1491     query.bindValue(":bufferid", bufferId.toInt());
1492     query.bindValue(":bufferactivity", (int)bufferActivity);
1493     safeExec(query);
1494     watchQuery(query);
1495 }
1496
1497 QHash<BufferId, Message::Types> PostgreSqlStorage::bufferActivities(UserId user)
1498 {
1499     QHash<BufferId, Message::Types> bufferActivityHash;
1500
1501     QSqlDatabase db = logDb();
1502     if (!beginReadOnlyTransaction(db)) {
1503         qWarning() << "PostgreSqlStorage::bufferActivities(): cannot start read only transaction!";
1504         qWarning() << " -" << qPrintable(db.lastError().text());
1505         return bufferActivityHash;
1506     }
1507
1508     QSqlQuery query(db);
1509     query.prepare(queryString("select_buffer_bufferactivities"));
1510     query.bindValue(":userid", user.toInt());
1511     safeExec(query);
1512     if (!watchQuery(query)) {
1513         db.rollback();
1514         return bufferActivityHash;
1515     }
1516
1517     while (query.next()) {
1518         bufferActivityHash[query.value(0).toInt()] = Message::Types(query.value(1).toInt());
1519     }
1520
1521     db.commit();
1522     return bufferActivityHash;
1523 }
1524
1525 Message::Types PostgreSqlStorage::bufferActivity(BufferId bufferId, MsgId lastSeenMsgId)
1526 {
1527     QSqlQuery query(logDb());
1528     query.prepare(queryString("select_buffer_bufferactivity"));
1529     query.bindValue(":bufferid", bufferId.toInt());
1530     query.bindValue(":lastseenmsgid", lastSeenMsgId.toQint64());
1531     safeExec(query);
1532     watchQuery(query);
1533     Message::Types result = Message::Types(nullptr);
1534     if (query.first())
1535         result = Message::Types(query.value(0).toInt());
1536     return result;
1537 }
1538
1539 QHash<QString, QByteArray> PostgreSqlStorage::bufferCiphers(UserId user, const NetworkId& networkId)
1540 {
1541     QHash<QString, QByteArray> bufferCiphers;
1542
1543     QSqlDatabase db = logDb();
1544     if (!beginReadOnlyTransaction(db)) {
1545         qWarning() << "PostgreSqlStorage::persistentChannels(): cannot start read only transaction!";
1546         qWarning() << " -" << qPrintable(db.lastError().text());
1547         return bufferCiphers;
1548     }
1549
1550     QSqlQuery query(db);
1551     query.prepare(queryString("select_buffer_ciphers"));
1552     query.bindValue(":userid", user.toInt());
1553     query.bindValue(":networkid", networkId.toInt());
1554     safeExec(query);
1555     watchQuery(query);
1556
1557     while (query.next()) {
1558         bufferCiphers[query.value(0).toString()] = QByteArray::fromHex(query.value(1).toString().toUtf8());
1559     }
1560
1561     db.commit();
1562     return bufferCiphers;
1563 }
1564
1565 void PostgreSqlStorage::setBufferCipher(UserId user, const NetworkId& networkId, const QString& bufferName, const QByteArray& cipher)
1566 {
1567     QSqlQuery query(logDb());
1568     query.prepare(queryString("update_buffer_cipher"));
1569     query.bindValue(":userid", user.toInt());
1570     query.bindValue(":networkid", networkId.toInt());
1571     query.bindValue(":buffercname", bufferName.toLower());
1572     query.bindValue(":cipher", QString(cipher.toHex()));
1573     safeExec(query);
1574     watchQuery(query);
1575 }
1576
1577 void PostgreSqlStorage::setHighlightCount(UserId user, BufferId bufferId, int highlightcount)
1578 {
1579     QSqlQuery query(logDb());
1580     query.prepare(queryString("update_buffer_highlightcount"));
1581
1582     query.bindValue(":userid", user.toInt());
1583     query.bindValue(":bufferid", bufferId.toInt());
1584     query.bindValue(":highlightcount", highlightcount);
1585     safeExec(query);
1586     watchQuery(query);
1587 }
1588
1589 QHash<BufferId, int> PostgreSqlStorage::highlightCounts(UserId user)
1590 {
1591     QHash<BufferId, int> highlightCountHash;
1592
1593     QSqlDatabase db = logDb();
1594     if (!beginReadOnlyTransaction(db)) {
1595         qWarning() << "PostgreSqlStorage::highlightCounts(): cannot start read only transaction!";
1596         qWarning() << " -" << qPrintable(db.lastError().text());
1597         return highlightCountHash;
1598     }
1599
1600     QSqlQuery query(db);
1601     query.prepare(queryString("select_buffer_highlightcounts"));
1602     query.bindValue(":userid", user.toInt());
1603     safeExec(query);
1604     if (!watchQuery(query)) {
1605         db.rollback();
1606         return highlightCountHash;
1607     }
1608
1609     while (query.next()) {
1610         highlightCountHash[query.value(0).toInt()] = query.value(1).toInt();
1611     }
1612
1613     db.commit();
1614     return highlightCountHash;
1615 }
1616
1617 int PostgreSqlStorage::highlightCount(BufferId bufferId, MsgId lastSeenMsgId)
1618 {
1619     QSqlQuery query(logDb());
1620     query.prepare(queryString("select_buffer_highlightcount"));
1621     query.bindValue(":bufferid", bufferId.toInt());
1622     query.bindValue(":lastseenmsgid", lastSeenMsgId.toQint64());
1623     safeExec(query);
1624     watchQuery(query);
1625     auto result = int(0);
1626     if (query.first())
1627         result = query.value(0).toInt();
1628     return result;
1629 }
1630
1631 bool PostgreSqlStorage::logMessage(Message& msg)
1632 {
1633     QSqlDatabase db = logDb();
1634     if (!beginTransaction(db)) {
1635         qWarning() << "PostgreSqlStorage::logMessage(): cannot start transaction!";
1636         qWarning() << " -" << qPrintable(db.lastError().text());
1637         return false;
1638     }
1639
1640     QVariantList senderParams;
1641     senderParams << msg.sender() << msg.realName() << msg.avatarUrl();
1642     QSqlQuery getSenderIdQuery = executePreparedQuery("select_senderid", senderParams, db);
1643     qint64 senderId;
1644     if (getSenderIdQuery.first()) {
1645         senderId = getSenderIdQuery.value(0).toLongLong();
1646     }
1647     else {
1648         // it's possible that the sender was already added by another thread
1649         // since the insert might fail we're setting a savepoint
1650         savePoint("sender_sp1", db);
1651         QSqlQuery addSenderQuery = executePreparedQuery("insert_sender", senderParams, db);
1652
1653         if (addSenderQuery.lastError().isValid()) {
1654             rollbackSavePoint("sender_sp1", db);
1655             getSenderIdQuery = executePreparedQuery("select_senderid", senderParams, db);
1656             watchQuery(getSenderIdQuery);
1657             getSenderIdQuery.first();
1658             senderId = getSenderIdQuery.value(0).toLongLong();
1659         }
1660         else {
1661             releaseSavePoint("sender_sp1", db);
1662             addSenderQuery.first();
1663             senderId = addSenderQuery.value(0).toLongLong();
1664         }
1665     }
1666
1667     QVariantList params;
1668     // PostgreSQL handles QDateTime()'s serialized format by default, and QDateTime() serializes
1669     // to a 64-bit time compatible format by default.
1670     params << msg.timestamp() << msg.bufferInfo().bufferId().toInt() << msg.type() << (int)msg.flags() << senderId << msg.senderPrefixes()
1671            << msg.contents();
1672     QSqlQuery logMessageQuery = executePreparedQuery("insert_message", params, db);
1673
1674     if (!watchQuery(logMessageQuery)) {
1675         db.rollback();
1676         return false;
1677     }
1678
1679     logMessageQuery.first();
1680     MsgId msgId = logMessageQuery.value(0).toLongLong();
1681     db.commit();
1682     if (msgId.isValid()) {
1683         msg.setMsgId(msgId);
1684         return true;
1685     }
1686     else {
1687         return false;
1688     }
1689 }
1690
1691 bool PostgreSqlStorage::logMessages(MessageList& msgs)
1692 {
1693     QSqlDatabase db = logDb();
1694     if (!beginTransaction(db)) {
1695         qWarning() << "PostgreSqlStorage::logMessage(): cannot start transaction!";
1696         qWarning() << " -" << qPrintable(db.lastError().text());
1697         return false;
1698     }
1699
1700     QList<int> senderIdList;
1701     QHash<SenderData, qint64> senderIds;
1702     QSqlQuery addSenderQuery;
1703     QSqlQuery selectSenderQuery;
1704     ;
1705     for (int i = 0; i < msgs.count(); i++) {
1706         auto& msg = msgs.at(i);
1707         SenderData sender = {msg.sender(), msg.realName(), msg.avatarUrl()};
1708         if (senderIds.contains(sender)) {
1709             senderIdList << senderIds[sender];
1710             continue;
1711         }
1712
1713         QVariantList senderParams;
1714         senderParams << sender.sender << sender.realname << sender.avatarurl;
1715
1716         selectSenderQuery = executePreparedQuery("select_senderid", senderParams, db);
1717         if (selectSenderQuery.first()) {
1718             senderIdList << selectSenderQuery.value(0).toLongLong();
1719             senderIds[sender] = selectSenderQuery.value(0).toLongLong();
1720         }
1721         else {
1722             savePoint("sender_sp", db);
1723             addSenderQuery = executePreparedQuery("insert_sender", senderParams, db);
1724             if (addSenderQuery.lastError().isValid()) {
1725                 // seems it was inserted meanwhile... by a different thread
1726                 rollbackSavePoint("sender_sp", db);
1727                 selectSenderQuery = executePreparedQuery("select_senderid", senderParams, db);
1728                 watchQuery(selectSenderQuery);
1729                 selectSenderQuery.first();
1730                 senderIdList << selectSenderQuery.value(0).toLongLong();
1731                 senderIds[sender] = selectSenderQuery.value(0).toLongLong();
1732             }
1733             else {
1734                 releaseSavePoint("sender_sp", db);
1735                 addSenderQuery.first();
1736                 senderIdList << addSenderQuery.value(0).toLongLong();
1737                 senderIds[sender] = addSenderQuery.value(0).toLongLong();
1738             }
1739         }
1740     }
1741
1742     // yes we loop twice over the same list. This avoids alternating queries.
1743     bool error = false;
1744     for (int i = 0; i < msgs.count(); i++) {
1745         Message& msg = msgs[i];
1746         QVariantList params;
1747         // PostgreSQL handles QDateTime()'s serialized format by default, and QDateTime() serializes
1748         // to a 64-bit time compatible format by default.
1749         params << msg.timestamp() << msg.bufferInfo().bufferId().toInt() << msg.type() << (int)msg.flags() << senderIdList.at(i)
1750                << msg.senderPrefixes() << msg.contents();
1751         QSqlQuery logMessageQuery = executePreparedQuery("insert_message", params, db);
1752         if (!watchQuery(logMessageQuery)) {
1753             db.rollback();
1754             error = true;
1755             break;
1756         }
1757         else {
1758             logMessageQuery.first();
1759             msg.setMsgId(logMessageQuery.value(0).toLongLong());
1760         }
1761     }
1762
1763     if (error) {
1764         // we had a rollback in the db so we need to reset all msgIds
1765         for (int i = 0; i < msgs.count(); i++) {
1766             msgs[i].setMsgId(MsgId());
1767         }
1768         return false;
1769     }
1770
1771     db.commit();
1772     return true;
1773 }
1774
1775 std::vector<Message> PostgreSqlStorage::requestMsgs(UserId user, BufferId bufferId, MsgId first, MsgId last, int limit)
1776 {
1777     std::vector<Message> messagelist;
1778
1779     QSqlDatabase db = logDb();
1780     if (!beginReadOnlyTransaction(db)) {
1781         qWarning() << "PostgreSqlStorage::requestMsgs(): cannot start read only transaction!";
1782         qWarning() << " -" << qPrintable(db.lastError().text());
1783         return messagelist;
1784     }
1785
1786     BufferInfo bufferInfo = getBufferInfo(user, bufferId);
1787     if (!bufferInfo.isValid()) {
1788         db.rollback();
1789         return messagelist;
1790     }
1791
1792     QString queryName;
1793     QVariantList params;
1794     if (last == -1 && first == -1) {
1795         queryName = "select_messagesNewestK";
1796     }
1797     else if (last == -1) {
1798         queryName = "select_messagesNewerThan";
1799         params << first.toQint64();
1800     }
1801     else {
1802         queryName = "select_messagesRange";
1803         params << first.toQint64();
1804         params << last.toQint64();
1805     }
1806     params << bufferId.toInt();
1807     if (limit != -1)
1808         params << limit;
1809     else
1810         params << QVariant(QVariant::Int);
1811
1812     QSqlQuery query = executePreparedQuery(queryName, params, db);
1813
1814     if (!watchQuery(query)) {
1815         qDebug() << "select_messages failed";
1816         db.rollback();
1817         return messagelist;
1818     }
1819
1820     QDateTime timestamp;
1821     while (query.next()) {
1822         // PostgreSQL returns date/time in ISO 8601 format, no 64-bit handling needed
1823         // See https://www.postgresql.org/docs/current/static/datatype-datetime.html#DATATYPE-DATETIME-OUTPUT
1824         timestamp = query.value(1).toDateTime();
1825         timestamp.setTimeSpec(Qt::UTC);
1826         Message msg(timestamp,
1827                     bufferInfo,
1828                     (Message::Type)query.value(2).toInt(),
1829                     query.value(8).toString(),
1830                     query.value(4).toString(),
1831                     query.value(5).toString(),
1832                     query.value(6).toString(),
1833                     query.value(7).toString(),
1834                     (Message::Flags)query.value(3).toInt());
1835         msg.setMsgId(query.value(0).toLongLong());
1836         messagelist.push_back(std::move(msg));
1837     }
1838
1839     db.commit();
1840     return messagelist;
1841 }
1842
1843 std::vector<Message> PostgreSqlStorage::requestMsgsFiltered(
1844     UserId user, BufferId bufferId, MsgId first, MsgId last, int limit, Message::Types type, Message::Flags flags)
1845 {
1846     std::vector<Message> messagelist;
1847
1848     QSqlDatabase db = logDb();
1849     if (!beginReadOnlyTransaction(db)) {
1850         qWarning() << "PostgreSqlStorage::requestMsgs(): cannot start read only transaction!";
1851         qWarning() << " -" << qPrintable(db.lastError().text());
1852         return messagelist;
1853     }
1854
1855     BufferInfo bufferInfo = getBufferInfo(user, bufferId);
1856     if (!bufferInfo.isValid()) {
1857         db.rollback();
1858         return messagelist;
1859     }
1860
1861     QSqlQuery query(db);
1862     if (last == -1 && first == -1) {
1863         query.prepare(queryString("select_messagesNewestK_filtered"));
1864     }
1865     else if (last == -1) {
1866         query.prepare(queryString("select_messagesNewerThan_filtered"));
1867         query.bindValue(":first", first.toQint64());
1868     }
1869     else {
1870         query.prepare(queryString("select_messagesRange_filtered"));
1871         query.bindValue(":last", last.toQint64());
1872         query.bindValue(":first", first.toQint64());
1873     }
1874     query.bindValue(":buffer", bufferId.toInt());
1875     query.bindValue(":limit", limit);
1876     int typeRaw = type;
1877     query.bindValue(":type", typeRaw);
1878     int flagsRaw = flags;
1879     query.bindValue(":flags", flagsRaw);
1880
1881     safeExec(query);
1882     if (!watchQuery(query)) {
1883         qDebug() << "select_messages failed";
1884         db.rollback();
1885         return messagelist;
1886     }
1887
1888     QDateTime timestamp;
1889     while (query.next()) {
1890         // PostgreSQL returns date/time in ISO 8601 format, no 64-bit handling needed
1891         // See https://www.postgresql.org/docs/current/static/datatype-datetime.html#DATATYPE-DATETIME-OUTPUT
1892         timestamp = query.value(1).toDateTime();
1893         timestamp.setTimeSpec(Qt::UTC);
1894         Message msg(timestamp,
1895                     bufferInfo,
1896                     (Message::Type)query.value(2).toInt(),
1897                     query.value(8).toString(),
1898                     query.value(4).toString(),
1899                     query.value(5).toString(),
1900                     query.value(6).toString(),
1901                     query.value(7).toString(),
1902                     Message::Flags{query.value(3).toInt()});
1903         msg.setMsgId(query.value(0).toLongLong());
1904         messagelist.push_back(std::move(msg));
1905     }
1906
1907     db.commit();
1908     return messagelist;
1909 }
1910
1911 std::vector<Message> PostgreSqlStorage::requestMsgsForward(
1912     UserId user, BufferId bufferId, MsgId first, MsgId last, int limit, Message::Types type, Message::Flags flags)
1913 {
1914     std::vector<Message> messagelist;
1915
1916     QSqlDatabase db = logDb();
1917     if (!beginReadOnlyTransaction(db)) {
1918         qWarning() << "PostgreSqlStorage::requestMsgsForward(): cannot start read only transaction!";
1919         qWarning() << " -" << qPrintable(db.lastError().text());
1920         return messagelist;
1921     }
1922
1923     BufferInfo bufferInfo = getBufferInfo(user, bufferId);
1924     if (!bufferInfo.isValid()) {
1925         db.rollback();
1926         return messagelist;
1927     }
1928
1929     QString queryName;
1930     QVariantList params;
1931
1932     if (first == -1) {
1933         params << std::numeric_limits<qint64>::min();
1934     } else {
1935         params << first.toQint64();
1936     }
1937
1938     if (last == -1) {
1939         params << std::numeric_limits<qint64>::max();
1940     } else {
1941         params << last.toQint64();
1942     }
1943
1944     params << bufferId.toInt();
1945
1946     int typeRaw = type;
1947     int flagsRaw = flags;
1948     params << typeRaw;
1949     params << flagsRaw;
1950
1951     if (limit != -1)
1952         params << limit;
1953     else
1954         params << QVariant(QVariant::Int);
1955
1956     QSqlQuery query = executePreparedQuery("select_messagesForward", params, db);
1957
1958     if (!watchQuery(query)) {
1959         qDebug() << "select_messages failed";
1960         db.rollback();
1961         return messagelist;
1962     }
1963
1964     QDateTime timestamp;
1965     while (query.next()) {
1966         // PostgreSQL returns date/time in ISO 8601 format, no 64-bit handling needed
1967         // See https://www.postgresql.org/docs/current/static/datatype-datetime.html#DATATYPE-DATETIME-OUTPUT
1968         timestamp = query.value(1).toDateTime();
1969         timestamp.setTimeSpec(Qt::UTC);
1970         Message msg(timestamp,
1971                     bufferInfo,
1972                     (Message::Type)query.value(2).toInt(),
1973                     query.value(8).toString(),
1974                     query.value(4).toString(),
1975                     query.value(5).toString(),
1976                     query.value(6).toString(),
1977                     query.value(7).toString(),
1978                     (Message::Flags)query.value(3).toInt());
1979         msg.setMsgId(query.value(0).toLongLong());
1980         messagelist.push_back(std::move(msg));
1981     }
1982
1983     db.commit();
1984     return messagelist;
1985 }
1986
1987 std::vector<Message> PostgreSqlStorage::requestAllMsgs(UserId user, MsgId first, MsgId last, int limit)
1988 {
1989     std::vector<Message> messagelist;
1990
1991     // requestBuffers uses it's own transaction.
1992     QHash<BufferId, BufferInfo> bufferInfoHash;
1993     foreach (BufferInfo bufferInfo, requestBuffers(user)) {
1994         bufferInfoHash[bufferInfo.bufferId()] = bufferInfo;
1995     }
1996
1997     QSqlDatabase db = logDb();
1998     if (!beginReadOnlyTransaction(db)) {
1999         qWarning() << "PostgreSqlStorage::requestAllMsgs(): cannot start read only transaction!";
2000         qWarning() << " -" << qPrintable(db.lastError().text());
2001         return messagelist;
2002     }
2003
2004     QSqlQuery query(db);
2005     if (last == -1) {
2006         query.prepare(queryString("select_messagesAllNew"));
2007     }
2008     else {
2009         query.prepare(queryString("select_messagesAll"));
2010         query.bindValue(":lastmsg", last.toQint64());
2011     }
2012     query.bindValue(":userid", user.toInt());
2013     query.bindValue(":firstmsg", first.toQint64());
2014     safeExec(query);
2015     if (!watchQuery(query)) {
2016         db.rollback();
2017         return messagelist;
2018     }
2019
2020     QDateTime timestamp;
2021     for (int i = 0; i < limit && query.next(); i++) {
2022         // PostgreSQL returns date/time in ISO 8601 format, no 64-bit handling needed
2023         // See https://www.postgresql.org/docs/current/static/datatype-datetime.html#DATATYPE-DATETIME-OUTPUT
2024         timestamp = query.value(2).toDateTime();
2025         timestamp.setTimeSpec(Qt::UTC);
2026         Message msg(timestamp,
2027                     bufferInfoHash[query.value(1).toInt()],
2028                     (Message::Type)query.value(3).toInt(),
2029                     query.value(9).toString(),
2030                     query.value(5).toString(),
2031                     query.value(6).toString(),
2032                     query.value(7).toString(),
2033                     query.value(8).toString(),
2034                     (Message::Flags)query.value(4).toInt());
2035         msg.setMsgId(query.value(0).toLongLong());
2036         messagelist.push_back(std::move(msg));
2037     }
2038
2039     db.commit();
2040     return messagelist;
2041 }
2042
2043 std::vector<Message> PostgreSqlStorage::requestAllMsgsFiltered(
2044     UserId user, MsgId first, MsgId last, int limit, Message::Types type, Message::Flags flags)
2045 {
2046     std::vector<Message> messagelist;
2047
2048     // requestBuffers uses it's own transaction.
2049     QHash<BufferId, BufferInfo> bufferInfoHash;
2050     foreach (BufferInfo bufferInfo, requestBuffers(user)) {
2051         bufferInfoHash[bufferInfo.bufferId()] = bufferInfo;
2052     }
2053
2054     QSqlDatabase db = logDb();
2055     if (!beginReadOnlyTransaction(db)) {
2056         qWarning() << "PostgreSqlStorage::requestAllMsgs(): cannot start read only transaction!";
2057         qWarning() << " -" << qPrintable(db.lastError().text());
2058         return messagelist;
2059     }
2060
2061     QSqlQuery query(db);
2062     if (last == -1) {
2063         query.prepare(queryString("select_messagesAllNew_filtered"));
2064     }
2065     else {
2066         query.prepare(queryString("select_messagesAll_filtered"));
2067         query.bindValue(":lastmsg", last.toQint64());
2068     }
2069     query.bindValue(":userid", user.toInt());
2070     query.bindValue(":firstmsg", first.toQint64());
2071
2072     int typeRaw = type;
2073     query.bindValue(":type", typeRaw);
2074
2075     int flagsRaw = flags;
2076     query.bindValue(":flags", flagsRaw);
2077
2078     safeExec(query);
2079     if (!watchQuery(query)) {
2080         db.rollback();
2081         return messagelist;
2082     }
2083
2084     QDateTime timestamp;
2085     for (int i = 0; i < limit && query.next(); i++) {
2086         // PostgreSQL returns date/time in ISO 8601 format, no 64-bit handling needed
2087         // See https://www.postgresql.org/docs/current/static/datatype-datetime.html#DATATYPE-DATETIME-OUTPUT
2088         timestamp = query.value(2).toDateTime();
2089         timestamp.setTimeSpec(Qt::UTC);
2090         Message msg(timestamp,
2091                     bufferInfoHash[query.value(1).toInt()],
2092                     (Message::Type)query.value(3).toInt(),
2093                     query.value(9).toString(),
2094                     query.value(5).toString(),
2095                     query.value(6).toString(),
2096                     query.value(7).toString(),
2097                     query.value(8).toString(),
2098                     Message::Flags{query.value(4).toInt()});
2099         msg.setMsgId(query.value(0).toLongLong());
2100         messagelist.push_back(std::move(msg));
2101     }
2102
2103     db.commit();
2104     return messagelist;
2105 }
2106
2107 QMap<UserId, QString> PostgreSqlStorage::getAllAuthUserNames()
2108 {
2109     QMap<UserId, QString> authusernames;
2110     QSqlQuery query(logDb());
2111     query.prepare(queryString("select_all_authusernames"));
2112     safeExec(query);
2113     watchQuery(query);
2114
2115     while (query.next()) {
2116         authusernames[query.value(0).toInt()] = query.value(1).toString();
2117     }
2118     return authusernames;
2119 }
2120
2121 // void PostgreSqlStorage::safeExec(QSqlQuery &query) {
2122 //   qDebug() << "PostgreSqlStorage::safeExec";
2123 //   qDebug() << "   executing:\n" << query.executedQuery();
2124 //   qDebug() << "   bound Values:";
2125 //   QList<QVariant> list = query.boundValues().values();
2126 //   for (int i = 0; i < list.size(); ++i)
2127 //     qCritical() << i << ": " << list.at(i).toString().toLatin1().data();
2128
2129 //   query.exec();
2130
2131 //   qDebug() << "Success:" << !query.lastError().isValid();
2132 //   qDebug();
2133
2134 //   if(!query.lastError().isValid())
2135 //     return;
2136
2137 //   qDebug() << "==================== ERROR ====================";
2138 //   watchQuery(query);
2139 //   qDebug() << "===============================================";
2140 //   qDebug();
2141 //   return;
2142 // }
2143
2144 bool PostgreSqlStorage::beginTransaction(QSqlDatabase& db)
2145 {
2146     bool result = db.transaction();
2147     if (!db.isOpen()) {
2148         db = logDb();
2149         result = db.transaction();
2150     }
2151     return result;
2152 }
2153
2154 bool PostgreSqlStorage::beginReadOnlyTransaction(QSqlDatabase& db)
2155 {
2156     QSqlQuery query = db.exec("BEGIN TRANSACTION READ ONLY");
2157     if (!db.isOpen()) {
2158         db = logDb();
2159         query = db.exec("BEGIN TRANSACTION READ ONLY");
2160     }
2161     return !query.lastError().isValid();
2162 }
2163
2164 QSqlQuery PostgreSqlStorage::prepareAndExecuteQuery(const QString& queryname, const QString& paramstring, QSqlDatabase& db)
2165 {
2166     // Query preparing is done lazily. That means that instead of always checking if the query is already prepared
2167     // we just EXECUTE and catch the error
2168     QSqlQuery query;
2169
2170     db.exec("SAVEPOINT quassel_prepare_query");
2171     if (paramstring.isNull()) {
2172         query = db.exec(QString("EXECUTE quassel_%1").arg(queryname));
2173     }
2174     else {
2175         query = db.exec(QString("EXECUTE quassel_%1 (%2)").arg(queryname).arg(paramstring));
2176     }
2177
2178     if (!db.isOpen() || db.lastError().isValid()) {
2179         // If the query failed because the DB connection was down, reopen the connection and start a new transaction.
2180         if (!db.isOpen()) {
2181             db = logDb();
2182             if (!beginTransaction(db)) {
2183                 qWarning()
2184                     << "PostgreSqlStorage::prepareAndExecuteQuery(): cannot start transaction while recovering from connection loss!";
2185                 qWarning() << " -" << qPrintable(db.lastError().text());
2186                 return query;
2187             }
2188             db.exec("SAVEPOINT quassel_prepare_query");
2189         }
2190         else {
2191             db.exec("ROLLBACK TO SAVEPOINT quassel_prepare_query");
2192         }
2193
2194         // and once again: Qt leaves us without error codes so we either parse (language dependent(!)) strings
2195         // or we just guess the error. As we're only interested in unprepared queries, this will be our guess. :)
2196         QSqlQuery checkQuery = db.exec(
2197             QString("SELECT count(name) FROM pg_prepared_statements WHERE name = 'quassel_%1' AND from_sql = TRUE").arg(queryname.toLower()));
2198         checkQuery.first();
2199         if (checkQuery.value(0).toInt() == 0) {
2200             db.exec(QString("PREPARE quassel_%1 AS %2").arg(queryname).arg(queryString(queryname)));
2201             if (db.lastError().isValid()) {
2202                 qWarning() << "PostgreSqlStorage::prepareQuery(): unable to prepare query:" << queryname << "AS" << queryString(queryname);
2203                 qWarning() << "  Error:" << db.lastError().text();
2204                 return QSqlQuery(db);
2205             }
2206         }
2207         // we always execute the query again, even if the query was already prepared.
2208         // this ensures, that the error is properly propagated to the calling function
2209         // (otherwise the last call would be the testing select to pg_prepared_statements
2210         // which always gives a proper result and the error would be lost)
2211         if (paramstring.isNull()) {
2212             query = db.exec(QString("EXECUTE quassel_%1").arg(queryname));
2213         }
2214         else {
2215             query = db.exec(QString("EXECUTE quassel_%1 (%2)").arg(queryname).arg(paramstring));
2216         }
2217     }
2218     else {
2219         // only release the SAVEPOINT
2220         db.exec("RELEASE SAVEPOINT quassel_prepare_query");
2221     }
2222     return query;
2223 }
2224
2225 QSqlQuery PostgreSqlStorage::executePreparedQuery(const QString& queryname, const QVariantList& params, QSqlDatabase& db)
2226 {
2227     QSqlDriver* driver = db.driver();
2228
2229     QStringList paramStrings;
2230     QSqlField field;
2231     for (int i = 0; i < params.count(); i++) {
2232         const QVariant& value = params.at(i);
2233         field.setType(value.type());
2234         if (value.isNull())
2235             field.clear();
2236         else
2237             field.setValue(value);
2238
2239         paramStrings << driver->formatValue(field);
2240     }
2241
2242     if (params.isEmpty()) {
2243         return prepareAndExecuteQuery(queryname, db);
2244     }
2245     else {
2246         return prepareAndExecuteQuery(queryname, paramStrings.join(", "), db);
2247     }
2248 }
2249
2250 QSqlQuery PostgreSqlStorage::executePreparedQuery(const QString& queryname, const QVariant& param, QSqlDatabase& db)
2251 {
2252     QSqlField field;
2253     field.setType(param.type());
2254     if (param.isNull())
2255         field.clear();
2256     else
2257         field.setValue(param);
2258
2259     QString paramString = db.driver()->formatValue(field);
2260     return prepareAndExecuteQuery(queryname, paramString, db);
2261 }
2262
2263 void PostgreSqlStorage::deallocateQuery(const QString& queryname, const QSqlDatabase& db)
2264 {
2265     db.exec(QString("DEALLOCATE quassel_%1").arg(queryname));
2266 }
2267
2268 void PostgreSqlStorage::safeExec(QSqlQuery& query)
2269 {
2270     // If the query fails due to the connection being gone, it seems to cause
2271     // exec() to return false but no lastError to be set
2272     if (!query.exec() && !query.lastError().isValid()) {
2273         QSqlDatabase db = logDb();
2274         QSqlQuery retryQuery(db);
2275         retryQuery.prepare(query.lastQuery());
2276         QMapIterator<QString, QVariant> i(query.boundValues());
2277         while (i.hasNext()) {
2278             i.next();
2279             retryQuery.bindValue(i.key(), i.value());
2280         }
2281         query = retryQuery;
2282         query.exec();
2283     }
2284 }
2285
2286 // ========================================
2287 //  PostgreSqlMigrationWriter
2288 // ========================================
2289 PostgreSqlMigrationWriter::PostgreSqlMigrationWriter()
2290     : PostgreSqlStorage()
2291 {}
2292
2293 bool PostgreSqlMigrationWriter::prepareQuery(MigrationObject mo)
2294 {
2295     QString query;
2296     switch (mo) {
2297     case QuasselUser:
2298         query = queryString("migrate_write_quasseluser");
2299         break;
2300     case Sender:
2301         query = queryString("migrate_write_sender");
2302         break;
2303     case Identity:
2304         _validIdentities.clear();
2305         query = queryString("migrate_write_identity");
2306         break;
2307     case IdentityNick:
2308         query = queryString("migrate_write_identity_nick");
2309         break;
2310     case Network:
2311         query = queryString("migrate_write_network");
2312         break;
2313     case Buffer:
2314         query = queryString("migrate_write_buffer");
2315         break;
2316     case Backlog:
2317         query = queryString("migrate_write_backlog");
2318         break;
2319     case IrcServer:
2320         query = queryString("migrate_write_ircserver");
2321         break;
2322     case UserSetting:
2323         query = queryString("migrate_write_usersetting");
2324         break;
2325     case CoreState:
2326         query = queryString("migrate_write_corestate");
2327         break;
2328     }
2329     newQuery(query, logDb());
2330     return true;
2331 }
2332
2333 // bool PostgreSqlMigrationWriter::writeUser(const QuasselUserMO &user) {
2334 bool PostgreSqlMigrationWriter::writeMo(const QuasselUserMO& user)
2335 {
2336     bindValue(0, user.id.toInt());
2337     bindValue(1, user.username);
2338     bindValue(2, user.password);
2339     bindValue(3, user.hashversion);
2340     bindValue(4, user.authenticator);
2341     return exec();
2342 }
2343
2344 // bool PostgreSqlMigrationWriter::writeSender(const SenderMO &sender) {
2345 bool PostgreSqlMigrationWriter::writeMo(const SenderMO& sender)
2346 {
2347     bindValue(0, sender.senderId);
2348     bindValue(1, sender.sender);
2349     bindValue(2, sender.realname);
2350     bindValue(3, sender.avatarurl);
2351     return exec();
2352 }
2353
2354 // bool PostgreSqlMigrationWriter::writeIdentity(const IdentityMO &identity) {
2355 bool PostgreSqlMigrationWriter::writeMo(const IdentityMO& identity)
2356 {
2357     _validIdentities << identity.id.toInt();
2358     bindValue(0, identity.id.toInt());
2359     bindValue(1, identity.userid.toInt());
2360     bindValue(2, identity.identityname);
2361     bindValue(3, identity.realname);
2362     bindValue(4, identity.awayNick);
2363     bindValue(5, identity.awayNickEnabled);
2364     bindValue(6, identity.awayReason);
2365     bindValue(7, identity.awayReasonEnabled);
2366     bindValue(8, identity.autoAwayEnabled);
2367     bindValue(9, identity.autoAwayTime);
2368     bindValue(10, identity.autoAwayReason);
2369     bindValue(11, identity.autoAwayReasonEnabled);
2370     bindValue(12, identity.detachAwayEnabled);
2371     bindValue(13, identity.detachAwayReason);
2372     bindValue(14, identity.detachAwayReasonEnabled);
2373     bindValue(15, identity.ident);
2374     bindValue(16, identity.kickReason);
2375     bindValue(17, identity.partReason);
2376     bindValue(18, identity.quitReason);
2377     bindValue(19, identity.sslCert);
2378     bindValue(20, identity.sslKey);
2379     return exec();
2380 }
2381
2382 // bool PostgreSqlMigrationWriter::writeIdentityNick(const IdentityNickMO &identityNick) {
2383 bool PostgreSqlMigrationWriter::writeMo(const IdentityNickMO& identityNick)
2384 {
2385     bindValue(0, identityNick.nickid);
2386     bindValue(1, identityNick.identityId.toInt());
2387     bindValue(2, identityNick.nick);
2388     return exec();
2389 }
2390
2391 // bool PostgreSqlMigrationWriter::writeNetwork(const NetworkMO &network) {
2392 bool PostgreSqlMigrationWriter::writeMo(const NetworkMO& network)
2393 {
2394     bindValue(0, network.networkid.toInt());
2395     bindValue(1, network.userid.toInt());
2396     bindValue(2, network.networkname);
2397     if (_validIdentities.contains(network.identityid.toInt()))
2398         bindValue(3, network.identityid.toInt());
2399     else
2400         bindValue(3, QVariant());
2401     bindValue(4, network.encodingcodec);
2402     bindValue(5, network.decodingcodec);
2403     bindValue(6, network.servercodec);
2404     bindValue(7, network.userandomserver);
2405     bindValue(8, network.perform);
2406     bindValue(9, network.useautoidentify);
2407     bindValue(10, network.autoidentifyservice);
2408     bindValue(11, network.autoidentifypassword);
2409     bindValue(12, network.useautoreconnect);
2410     bindValue(13, network.autoreconnectinterval);
2411     bindValue(14, network.autoreconnectretries);
2412     bindValue(15, network.unlimitedconnectretries);
2413     bindValue(16, network.rejoinchannels);
2414     bindValue(17, network.connected);
2415     bindValue(18, network.usermode);
2416     bindValue(19, network.awaymessage);
2417     bindValue(20, network.attachperform);
2418     bindValue(21, network.detachperform);
2419     bindValue(22, network.usesasl);
2420     bindValue(23, network.saslaccount);
2421     bindValue(24, network.saslpassword);
2422     // Custom rate limiting
2423     bindValue(25, network.usecustommessagerate);
2424     bindValue(26, network.messagerateburstsize);
2425     bindValue(27, network.messageratedelay);
2426     bindValue(28, network.unlimitedmessagerate);
2427     return exec();
2428 }
2429
2430 // bool PostgreSqlMigrationWriter::writeBuffer(const BufferMO &buffer) {
2431 bool PostgreSqlMigrationWriter::writeMo(const BufferMO& buffer)
2432 {
2433     bindValue(0, buffer.bufferid.toInt());
2434     bindValue(1, buffer.userid.toInt());
2435     bindValue(2, buffer.groupid);
2436     bindValue(3, buffer.networkid.toInt());
2437     bindValue(4, buffer.buffername);
2438     bindValue(5, buffer.buffercname);
2439     bindValue(6, (int)buffer.buffertype);
2440     bindValue(7, buffer.lastmsgid);
2441     bindValue(8, buffer.lastseenmsgid);
2442     bindValue(9, buffer.markerlinemsgid);
2443     bindValue(10, buffer.bufferactivity);
2444     bindValue(11, buffer.highlightcount);
2445     bindValue(12, buffer.key);
2446     bindValue(13, buffer.joined);
2447     bindValue(14, buffer.cipher);
2448     return exec();
2449 }
2450
2451 // bool PostgreSqlMigrationWriter::writeBacklog(const BacklogMO &backlog) {
2452 bool PostgreSqlMigrationWriter::writeMo(const BacklogMO& backlog)
2453 {
2454     bindValue(0, backlog.messageid.toQint64());
2455     bindValue(1, backlog.time);
2456     bindValue(2, backlog.bufferid.toInt());
2457     bindValue(3, backlog.type);
2458     bindValue(4, (int)backlog.flags);
2459     bindValue(5, backlog.senderid);
2460     bindValue(6, backlog.senderprefixes);
2461     bindValue(7, backlog.message);
2462     return exec();
2463 }
2464
2465 // bool PostgreSqlMigrationWriter::writeIrcServer(const IrcServerMO &ircserver) {
2466 bool PostgreSqlMigrationWriter::writeMo(const IrcServerMO& ircserver)
2467 {
2468     bindValue(0, ircserver.serverid);
2469     bindValue(1, ircserver.userid.toInt());
2470     bindValue(2, ircserver.networkid.toInt());
2471     bindValue(3, ircserver.hostname);
2472     bindValue(4, ircserver.port);
2473     bindValue(5, ircserver.password);
2474     bindValue(6, ircserver.ssl);
2475     bindValue(7, ircserver.sslversion);
2476     bindValue(8, ircserver.useproxy);
2477     bindValue(9, ircserver.proxytype);
2478     bindValue(10, ircserver.proxyhost);
2479     bindValue(11, ircserver.proxyport);
2480     bindValue(12, ircserver.proxyuser);
2481     bindValue(13, ircserver.proxypass);
2482     bindValue(14, ircserver.sslverify);
2483     return exec();
2484 }
2485
2486 // bool PostgreSqlMigrationWriter::writeUserSetting(const UserSettingMO &userSetting) {
2487 bool PostgreSqlMigrationWriter::writeMo(const UserSettingMO& userSetting)
2488 {
2489     bindValue(0, userSetting.userid.toInt());
2490     bindValue(1, userSetting.settingname);
2491     bindValue(2, userSetting.settingvalue);
2492     return exec();
2493 }
2494
2495 bool PostgreSqlMigrationWriter::writeMo(const CoreStateMO& coreState)
2496 {
2497     bindValue(0, coreState.key);
2498     bindValue(1, coreState.value);
2499     return exec();
2500 }
2501
2502 bool PostgreSqlMigrationWriter::postProcess()
2503 {
2504     QSqlDatabase db = logDb();
2505     QList<Sequence> sequences;
2506     sequences << Sequence("backlog", "messageid") << Sequence("buffer", "bufferid") << Sequence("identity", "identityid")
2507               << Sequence("identity_nick", "nickid") << Sequence("ircserver", "serverid") << Sequence("network", "networkid")
2508               << Sequence("quasseluser", "userid") << Sequence("sender", "senderid");
2509     QList<Sequence>::const_iterator iter;
2510     for (iter = sequences.constBegin(); iter != sequences.constEnd(); ++iter) {
2511         resetQuery();
2512         newQuery(QString("SELECT setval('%1_%2_seq', max(%2)) FROM %1").arg(iter->table, iter->field), db);
2513         if (!exec())
2514             return false;
2515     }
2516
2517     // Update the lastmsgid for all existing buffers.
2518     resetQuery();
2519     newQuery(QString("SELECT populate_lastmsgid()"), db);
2520     if (!exec())
2521         return false;
2522     return true;
2523 }